Voice actor Frank Welker is to voice acting what Lon Chaney & Lon Chaney Jr. were to acting through layers of makeup. But while Frank has done just about everything from people to animals to special creature vocalizations to killer robots (he voiced 13 of the original Decepticons on "Transformers"), to some people Frank will ALWAYS be the voice of Fred from "Scooby-Doo". But for some reason, Frank has been pulling double duty lately as both Fred and Scooby, who was previously voiced by Scott Innes, who got the job after the original voice of Scooby, Don Messick, died. Frank's still a good Fred, but despite his considerable vocal talent, his Scooby is something of a disappointment: he never quite captures Don's Scooby pitch the way Scott did and for the most part his Scooby sounds too much like Fred. Which is strange considering that Frank's been with Scooby from the beginning. That's just one of the dis-pleasures of this entry.
The gang heads down under for vacation and ends up investigating the goings on at a rock festival which leads to a group of alleged vampires. Though colorfully drawn and full of gags, it never reaches the height of "Zombie Island", "Witch's Ghost", "Alien Invaders" and even the original show itself. The best bit is probably Fred carrying the whole gang across a rope bridge. Velma also sings with the voice of Jennifer Love Hewitt.
Still, it's nice to have the old crew back together - Nicole Jaffe as Velma, Heather North as Daphne (though technically Daphne #2) and Casey Kasem as Shaggy (who was absent from the previous entries). The "commentary" by Fred, Shaggy and Scooby is mildly amusing.